Brodhead Pietenpol Association

Original Posted By: "Dennis Engelkenjohn"
Does anyone know where the lift strut fittings attach on the spars? I am usingthe extended fuselage version on the corvair supplement.Dennis________________________________________________________________________________

Original Posted By: Mike Luther

Original Posted By: "Kirk Huizenga"
Ben wrote->The supplemental plans also include plans for motormounts for the A-65 and >Corvair. They show a modified plan for the motormount brackets that are >longer than on the original plans, but I don't remember any drawings for >the lift struts.On the sheet labeled "Supplementary Plans- Pietenpol Air-Camper", there are several things. There are side views of the fuselage framing and sheeting, labeled "*corrected 9-22-94 DP" for the lengths of the three verticals aft of the pilot's seat and ahead of the rudder post, corrected by Don Pietenpol. There is a dimensioned plan of the revised rear seat bottom framing, with two fore-and-aft braces rather than one under the seat bottom plywood as shown on the original drawings. There are upper and lower motor mount bracket details, full size, including mounting ears for the cabane/center section brace struts to eliminate the x-brace wires between the cabanes. And there is a full-size detail of "flying strut fitting; 8 required". This is the piece in question.The revised "flying strut fitting" is clearly longer than the originals and the angled cut clearly indicates that it installs at more of an angle from the vertical than the original, supposedly to align with the axis of the lift strut. I have not drawn up the original nor the revised brackets in AutoCAD to see if this is the case, but I'll bet that it is.My conclusion is the same, though... either bracket will work just fine for your lift struts, and that has been proven by thousands of flight hours with no problems that I am aware of.Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________Date: Thu, 22 Dec 2005 19:34:01 -0600

Original Posted By: "Oscar Zuniga"
The problem with the original fitting orientation is that it loads the flat strapmaterial in a bending moment instead of tension.Flat strap likes tension best.Greg CardinalMinneapolis----- Original Message -----

Original Posted By: "Kirk Huizenga"
27, 2005) at 12/23/2005 04:33:14 PMKirk,I never used or heard of Earl Myers drawings but I used the following:Piano hinge MS20257P5: ASS p/n 03-00051-6 2Two lug anchor nuts AN 366F-1032A in the wing 24Two lug anchor nuts MK1000-03 in the aileron 24And plain machine screws AN526-1032-R18 48Machine screw and anchor nut about every 6 " without interfering with ribs.The machine screws are not countersunk but are offset against each other sothe heads do hit.When flying I observed the aileron, a 1/2" deflection (trailing edge) isenough to start a gentle roll in to the turn.I am sure during landing it deflects more (lower speed) but it does nottake a whole lot.Anyway the control stick hits it's limits (torque tube control arm hittingthe floor board) before the aileron.Hans van der Voort________________________________________________________________________________Date: Fri, 23 Dec 2005 13:06:19 -0600

Original Posted By: "Barry Davis"
27, 2005) at 12/23/2005 08:51:24 PMKirkI started of with using the nylock type (AN 366F-1032A) only.But these are to big on the aileron side, they would show through thefabric, same goes for machine screw length.This happens because the Aileron nuts are mounted on an angle, 30 degreesor so.You can of course mount them lower but that is also away from the hingepoint and makes the setup weaker.If the explanation is not entirely clear maybe this drawing explainsbetter.(See attached file: Visio-Drawing1.pdf)Best regardsHans van der Voort________________________________________________________________________________

Original Posted By: "Hans Vander Voort"
HansWhat program did you draw this picture in? It says Visio-Drawing1. It looks good and easy.Barry----- Original Message -----

Original Posted By: "MICHAEL SILVIUS"
Subject: Re: Pietenpol-List: Earl Myers DrawingsBarry,I have a old version of VISIO 2000 I believe its now part of Microsoft Hans________________________________________________________________________________